68385397 has 2 divisors, whose sum is σ = 68385398. Its totient is φ = 68385396.

The previous prime is 68385379. The next prime is 68385413. The reversal of 68385397 is 79358386.

Together with previous prime (68385379) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43375396 + 25010001 = 6586^2 + 5001^2 .

It is a cyclic number.

It is not a de Polignac number, because 68385397 - 2⁷ = 68385269 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68385397.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68385347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34192698 + 34192699.

It is an arithmetic number, because the mean of its divisors is an integer number (34192699).

Almost surely, 2^68385397 is an apocalyptic number.

It is an amenable number.

68385397 is a deficient number, since it is larger than the sum of its proper divisors (1).

68385397 is an equidigital number, since it uses as much as digits as its factorization.

68385397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1088640, while the sum is 49.

The square root of 68385397 is about 8269.5463599886. The cubic root of 68385397 is about 408.9351646679.

The spelling of 68385397 in words is "sixty-eight million, three hundred eighty-five thousand, three hundred ninety-seven".